Tablero de material derivado de la madera OSB (oriented strand board) con propiedades mejoradas y procedimiento para su producción

• Main Authors: KALWA, Norbert, LEHNHOFF, Ingo
• Format: Patent
• Language: Spanish
• Published: 22.03.2018
• Subjects: CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW ORSIMILAR MATERIALS; MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUTORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTINGOF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL; PERFORMING OPERATIONS; PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FORIMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILARMATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITHPERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; TRANSPORTING; WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL

Procedimiento para la producción de tableros de material derivado de la madera OSB, en particular tableros de material derivado de la madera OSB con emisión reducida de compuestos orgánicos volátiles (COV), que comprende las etapas de: a) producir virutas de madera a partir de maderas apropiadas, b) someter a torrefacción al menos una parte de las virutas de madera mediante calentamiento en atmósfera pobre en oxígeno o sin oxígeno a presión atmosférica o presión elevada a una temperatura de entre 150 °C y 300 °C; c) encolar las virutas de madera torrefactas y las virutas de madera no torrefactas con al menos un aglutinante; d) esparcir las virutas de madera encoladas sobre una cita transportadora; y e) compactar las virutas de madera encoladas para crear un tablero de material derivado de la madera OSB. The invention relates to a method for producing OSB wood material panels, in particular OSB wood material panels having reduced emission of volatile organic compounds (VOCs), including the following steps: a) producing wood strands from suitable woods; b) torrefying at least some of the wood strands; c) glue-coating the torrefied wood strands and non-torrefied wood strands with at least one binder; d) scattering the glue-coated wood strands onto a conveyor belt; and e) pressing the glue-coated wood strands to form a wood material panel. The invention further relates to an OSB wood material panel that can be produced in accordance with said method and to the use of torrefied wood strands to reduce the emission of VOCs from OSB wood material panels.